Title :
Interactions between TCP and RLP protocols in a cellular system
Author :
Kostic, Zoran ; Qiu, Xiaoxin ; Chang, Li Fung
Author_Institution :
Wireless Syst. Res., Lucent Technol. Bell Labs, Middletown, NJ, USA
Abstract :
We investigate the interactions between the transmission control protocol (TCP) and radio link protocols (RLP) of various reliability, when used in a spectrally efficient microcellular system similar to the EDGE cellular system. The study is done through detailed downlink simulations of a large cellular system with numerous simultaneous users. Either fixed-load or WWW-like packet traffic is generated for each link, and RENO TCP is run. The results show that the choice of RLP retransmission parameters impacts the throughput loss and application packet delay significantly, and that the range of 3-10 RLP block retransmissions (60-200ms persistency) offers the smallest performance degradation caused by TCP/RLP interactions. We conclude that variable RLP persistency based on the knowledge of radio conditions for individual users, is highly desirable
Keywords :
delay estimation; microcellular radio; packet radio networks; telecommunication traffic; transport protocols; EDGE cellular system; RENO TCP; RLP; TCP; WWW-like packet traffic; application packet delay; downlink simulations; fixed-load packet traffic; microcellular system; performance; protocol interactions; radio conditions; radio link protocols; reliability; retransmission parameters; throughput loss; transmission control protocol; variable persistency; Control systems; Degradation; Delay; Downlink; Performance loss; Protocols; Radio control; Radio link; Throughput; Traffic control;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.945095
